EXCLUSIVE: Why is Kris Jenner Embarrassed of Her Sister?

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The Kardashians have become such a household name that sometimes it’s easy to forget that the family had completely different lives before fame. For matriarch Kris Jenner, that includes a younger sister, Karen Houghton.

In her memoir, Kris claims that she and Karen are part of each other’s lives to this day, but despite how often the mom of six is seen in public, it’s very rare to see her hanging out with her little sis.

Through our investigation of Kris’ mysterious sister, Star uncovered two of Karen’s past relationships with men who have criminal records. “Karen’s relationships with such unsavory characters had to have been a sore spot with the Kardashian clan,” an insider tells us. “Karen means well, but bringing violent cons into their circle has made her a bit of a black sheep.”

For more about Karen’s hellish relationships and why we rarely see her, pick up the latest issue of Star on newsstands now!